Agitating – Mortar mixer type – Methods
Patent
1989-09-21
1992-05-19
Jenkins, Robert W.
Agitating
Mortar mixer type
Methods
366 15, 366 17, 366 65, 366 66, 366136, B01F 1502, B28C 904
Patent
active
051142392
ABSTRACT:
A mixing apparatus comprises two or more tubs in which mixtures can be mixed to obtain averaging of a particular property, such as density. Two recirculation lines are used. One recirculates between an initial mixing tub and a mixing inlet, and the other recirculates from the additional, secondary averaging tub(s) and the mixing inlet. Computer control responds to densities of fluids recirculated through both of the recirculation lines. In a preferred embodiment, the computer is also responsive to pressure of one of the inlet substances. In response to these measured inputs and other data entered through a data entry terminal, the computer generates control signals for controlling the inputs of both of two inlet substances. In a preferred embodiment, the apparatus and a corresponding method utilize displacement tanks both as averaging tubs and as conventional displacement tanks.
REFERENCES:
patent: 3231245 (1966-01-01), Harvey
patent: 4184771 (1980-01-01), Day
patent: 4764019 (1988-08-01), Kaminski
patent: 4863277 (1989-09-01), Neal
Halliburton Services publication entitled "Halliburton Modular Recirculating Cement Mixer (RCM.TM.) System", dated at least one year prior to Aug., 1989.
Byron Jackson Inc. brochure entitled "New BJ PSB Precision Slurry Blender", dated at least one year prior to Aug., 1989.
BJ-Titan publication entitled "The Ram-Recirculating Averaging Mixer for Consistent Slurry Weight", and attached BJ Hughes "Product Information Equipment Specification" entitled Dual RAM, dated at least one year prior to Aug., 1989.
Magcobar-Dresser publication entitled "The Magcobar Cementing System", dated at least one year prior to Aug., 1989.
The Western Company brochure entitled "Western Offshore Cementing Services", dated at least one year prior to Aug., 1989.
Duzan James R.
Gilbert III E. Harrison
Halliburton Company
Jenkins Robert W.
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